Pulmonata

Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

proper n. A taxonomic order within the superorder Heterobranchia — the air-breathing slugs and snails.

from the GNU version of the Collaborative International Dictionary of English

n.pl. An extensive division, or sub-class, of hermaphrodite gastropods, in which the mantle cavity is modified into an air-breathing organ, as in Helix, or land snails, Limax, or garden slugs, and many pond snails, as Limnæa and Planorbis.

from The Century Dictionary and Cyclopedia

In conchology: An order or subclass of Gasteropoda, air-breathing and adapted to a terrestrial life; the true pulmonate or pulmoniferous gastropods, as snails and slugs, having the pallial cavity or mantle-chamber converted into a lung-sac, no ctenidia or true gills, and generally no true operculum to the shell.

A section of rhipidoglossate gastropods, characterized by adaptation for aërial respiration, and including the families Helicinidæ, Hydrocenidæ, and Proserpinidæ.

In 1952, he started publishing Gastropodia; the 1st paper in the 1st issue was titled: "Pulmonata, Xanthonycidae: comparative sexological studies of the North American land-snail, Monadenia fidelis Gray – a seeming ally of Mexican helicoids."

More or less everything we currently know about this snail is in Anderson & Smith A redescription of the carinate pillsnail, Euchemotrema hubrichti (Pilsbry, 1940) (Pulmonata:Polygyridae), with notes on habitat and genetics.